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Fix minor bugs in float_to_usi and dp_to_sf

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From-SVN: r13000
This commit is contained in:
Ian Lance Taylor 1996-10-23 02:45:07 +00:00
parent d1b9c52c2f
commit 34d6007ae0
1 changed files with 11 additions and 3 deletions
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14
gcc/config/fp-bit.c
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@ -1313,7 +1313,7 @@ float_to_usi (FLO_type arg_a)
if (a.normal_exp > 31)
return MAX_USI_INT;
else if (a.normal_exp > (FRACBITS + NGARDS))
return a.fraction.ll << ((FRACBITS + NGARDS) - a.normal_exp);
return a.fraction.ll << (a.normal_exp - (FRACBITS + NGARDS));
else
return a.fraction.ll >> ((FRACBITS + NGARDS) - a.normal_exp);
}
@ -1388,10 +1388,18 @@ SFtype
df_to_sf (DFtype arg_a)
{
fp_number_type in;
USItype sffrac;
unpack_d ((FLO_union_type *) & arg_a, &in);
return __make_fp (in.class, in.sign, in.normal_exp,
in.fraction.ll >> F_D_BITOFF);
sffrac = in.fraction.ll >> F_D_BITOFF;
/* We set the lowest guard bit in SFFRAC if we discarded any non
zero bits. */
if ((in.fraction.ll & (((USItype) 1 << F_D_BITOFF) - 1)) != 0)
sffrac |= 1;
return __make_fp (in.class, in.sign, in.normal_exp, sffrac);
}
#endif